this post was submitted on 06 Jun 2026
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Programming
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But that's the thing with benchmarks, you run them because making assumptions about performance based on guesswork often fails. SQLite is very much architecturally unique for being a daemon-less database that doesn't concern itself with concurrent writes.
Is UUID as pk slower than int or bigints? Probably - you're storing 4x more data than a 32-bit integer. Does it matter? Probably not.
UUID could be slower for SQLite. If you have a SEQUENCE and millions of concurrent writes you have other problems.